Among the six newspapers published in Boston in 1770, The Boston Gazette and Country Journal of March 12, 1770, published by Edes & Gill, gave the fullest account of the Boston Massacre which had occurred on March 5. Its story was set between heavy mourning leads and illustrated with four coffins from a woodcut made from lead by Paul Revere (PDF) External. There were two four-page editions of the Gazette for March 12, 1770. The first edition was accompanied by a Supplement of the same date carrying advertising. The second edition had pages 1, 2, and 3 identical to the first edition, but page 4 carried advertising taken in part from page 4 of the first edition and in part from the Supplement.
To distinguish these two editions, it is only necessary to note the first item on page 4, column 1. The first edition states, "To the New England Man," and the second edition, "Just published and sold by Edes & Gill . . . North-American Almanack, and Massachusetts Register, for the Year 1770."
There are a dozen or more spurious reprints of the second edition, but they are not exact facsimiles. Owners of such reprints should compare them with the following details from the original (reprints will vary from these details):
The line-up of the paragraphs on pages 2 and 3 of all reprints examined differs greatly from that of the original:
The reprints differ from the original in many if not all these details. The commercial value of the reprints is very small.
Source: Information Circular 4 (Revised 1957).
The Library of Congress has an original first edition issue as well as copies of the second edition and the Supplement to the first edition; these copies are photostats made from the original copies belonging to the Massachusetts Historical Society in Boston (online catalog record).